Pump not running full schedule

My pump is not running the full schedule…I have an aqualink rs4 panel…my run time schedule are every day from 12am to 9 am…from 12am to 3 am it’s the cleaner…then from 3am-9am filter…but what I notice is that …it would run 4 to 5 days at the regular schedule then after that it would only run from 12am-3am than the pump shuts off…if I don’t turn off the breaker to reset it…it would  run the 12am-3am…but once I reset…it runs the full schedule for 4to 5 days…